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WRDB - GB

Regulations

9

2

Regulations

Any  local  by-laws  and  regulations  pertaining  to
installation and use of gas-heated appliances must be
observed.  Please  refer  to  the  laws  that  should  be
attended in your country.

3

Installation

3.1

Important information

B

Before installing, call the gas company and check the
standard  relating  to  gas  heaters  and  ventilation
requirements for rooms.

B

Install a gas cut-off valve as close as possible to the
heater.

B

After  finishing  the  gas  system,  the  pipes  must  be
thoroughly  cleaned  and  leak-tested;  to  avoid
damaging the gas automatic by excess pressure, this
test  must  be  performed  with  the  gas  valve  of  the
heater closed.

B

Check if the heater corresponds to the type of gas
provided.

B

Check if the flow and pressure through the installed
reducer are appropriate for the consumption of the
heater (see technical data in the table  4).

3.2

Selection 

of 

the 

place 

of

installation

Requirements regarding the place of installation

• Do not install the heater in rooms with a volume of

less  than  8  m

3

  (not  including  the  volume  of  the

furniture providing this does not exceed 2 m

3

.

• Comply  with  the  specific  instructions  for  each

country.

• Assemble the gas heater in a well-ventilated location

where it will not be exposed to temperatures below
zero and in a place where there is an evacuation pipe
for combustion gases.

• The  gas  heater  must  not  be  installed  over  a  heat

source.

• To avoid corrosion, the combustion air must be free

from  harmful  substances.  Examples  of  particularly
corrosive  substances:  halogenated  hydrocarbons
contained  in  solvents,  paints,  glues,  engine  gases

and various domestic detergents. If necessary, take
adequate measures.

• Respect  the  minimum  installation  clearances

indicated in Fig. 4.

• The heater must not be installed in locations where

the room temperature can reach 0 °C.

In case of a frost risk:

B

Turn the heater off

B

Remove batteries

B

Purge the heater (see section 6.3).

Fig. 4

Minimum clearances

Combustion gases

• All  gas  heaters  must  be  connected  in  a  leak-roof

manner  to  a  gas  evacuation  pipe  of  adequate
dimensions.

• The flue must:

– be  vertical  (reduced  horizontal  sections  or  no

horizontal sections at all)

– be thermally insulated
– have an exit above the maximum roof level

• A flexible or rigid pipe should be used, fit it inside the

flue socket. The external diameter of the pipe should
be slightly smaller than the dimension specified in the
appliances dimensions table.

• The  extremity  of  the  evacuation  pipe  must  be

protected against wind/rain.

i

The gas installation, the connection of ex-
haust/supply pipes as well as the initial 
startup are to be performed exclusively by 
authorised gas fitters.

i

The heater can only be used in the coun-
tries indicated on the rating plate.

Caution: 

Ensure that the extremity of 

the evacuation pipe is placed between 
the ledge and the ring of the flue.

Содержание miniMAXX WRD 11-2.B Series

Страница 1: ...Installation Manual and Operating Instructions Gas Heaters miniMAXX WRD 11 2 B WRD 14 2 B WRD 18 2 B WRDB GB PT 05 06 JS...

Страница 2: ...3 1 Important information 9 3 2 Selection of the place of installation 9 3 3 Heater mounting 10 3 4 Water connection 10 3 5 Gas connection 10 3 6 Startup 11 4 Use 12 4 1 Digital display description 12...

Страница 3: ...aterial paper sol vents paints etc near the heater Combustion air and surrounding air B To avoid corrosion the combustion air and surroun ding air must be free from harmful substances e g halogenated...

Страница 4: ...ventional hea ters due to the possibility of power adjustment and no permanent pilot flame Natural gas LPG burner Semi permanent pilot burner which only functions during the period between the opening...

Страница 5: ...urner status check 35 Switch LED Battery status check 36 Front 37 Opening for mounting on the wall 38 Connection collar to the combustion gases pipe 39 Flue with non return device 40 Gas automatic 42...

Страница 6: ...on valve 9 Venturi 10 Temperature volume selector 11 Water automatic 12 Command cone 13 Water flow regulator 14 Water filter 15 Micro switch 16 Cold water pipe 17 Diaphragm 18 Main gas valve 19 Maximu...

Страница 7: ...es its operation B To do so just turn on the switch Fig 9 After this procedure automatic ignition occurs whenever a hot water tap is opened First the pilot burner is lit and approximately four seconds...

Страница 8: ...ximum permissible pressure pw bar 12 12 12 Temperature selector in fully clockwise position Temperature rise C 50 50 50 Flow range l min 2 5 5 2 7 2 8 8 Minimum operating pressure pwmin bar 0 1 0 1 0...

Страница 9: ...tion pipe for combustion gases The gas heater must not be installed over a heat source To avoid corrosion the combustion air must be free from harmful substances Examples of particularly corrosive sub...

Страница 10: ...llation beforehand because the presence of dirt may reduce the flow and in extreme cases cause a blockage B Identify the cold water pipe Fig 5 item A and the hot water pipe Fig 5 item B so as to avoid...

Страница 11: ...laces for recycling Do not insert flat batteries Only use the type of batteries indicated 4 3 Before starting up the heater B Check if the gas indicated on the rating plate is the same as the one used...

Страница 12: ...urn anti clockwise Increases flow and decreases water temperature Fig 13 B Turn clockwise Decreases flow and increases water temperature Regulating the temperature to the minimum required value reduce...

Страница 13: ...ew B Open various hot water taps B Using the adjusting screw Fig 15 regulate the pressure until achieving the values indicated in the table 6 B Seal the adjusting screw once again Minimum gas flow adj...

Страница 14: ...e pilot burner B Remove and clean the pilot injector 6 2 Startup after maintenance work B Tighten all connections once more B Read chapter 4 Use and chapter 5 Adjustments 6 3 Heater purge In case of a...

Страница 15: ...combustion gas probe proceed in the following manner B Remove the combustion gases evacuation pipe B Replace it with a pipe approximately 50 cm long blocked at one end B The pipe must be routed verti...

Страница 16: ...hnician Vent the area Wait 10 minutes and restart the heater If the problem persists call a qualified technician Incorrect temperature informa tion in the appliance digital display Insuficient contact...

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